February 11th marks the International Day of Women and Girls in Science. The day honors the vital role played by women and girls in Science, Technology, Engineering, and Mathematics (STEM). It promotes full and equal access to and participation in science for women and girls. Pay tribute to women in science by learning and sharing their contributions. Join the conversation on social media with #WomenInScience and inspire a young girl with a book like Women in Science: 50 Fearless Pioneers Who Changed the World!